| Regimental number | 51835 |
| Date of birth | |
| Place of birth | Milang, South Australia |
| Religion | Church of Christ |
| Occupation | Assistant baker |
| Address | Milang, South Australia |
| Marital status | Single |
| Age at embarkation | 21.1 |
| Height | 5' 6.25" |
| Weight | 122 lbs |
| Next of kin | Father, W Overall, Milang, South Australia |
| Previous military service | Nil (exempt area under Compulsory Military Training scheme) |
| Enlistment date | |
| Place of enlistment | Adelaide, South Australia |
| Rank on enlistment | Private |
| Unit name | South Australian Reinforcement 1 |
| AWM Embarkation Roll number | 23/111/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 50th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Brother: 20563 Pte Sydney Walker OVERALL, Australian Army Medical Corps, returned to Australia, 22 January 1920. |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'City of Exeter', 12 July 1918; discharged (termination of period of enlistment), Adelaide, 6 September 1919. Medals: British War Medal, Victory Medal Also served in World War II: Service No S69562. |
| Date of death | |
| Age at death | 70 |
| Place of burial | Centennial Park Cemetery, Adelaide, South Australia |
| Sources | NAA: B2455, OVERALL Ernest Graham |